Machine for forming and attaching wire coils



Nov. 15, 1927.

W. KIWI MACHINE FOR FORMING AND ATTACHING WIRE COILS Filed Aug. 24 1925 4 Sheets-Sheet l SWA Nov. l5, 1927.

y W. KIWI MACHINE FOR FORMING AND ATTACHING WIRE coILs Filed A1125. 24 1926- 4 Sheets-Sheet 2 www Il I|VI I ,llt i A""Nr; l5, 1927.

W. KIWI MACHINE FOR FORMING AND ATTACHING WIRE CGILS Filed Aug. 24, 192s 4 snees-sheet 3 Nov. l5, 1927.

W. KIWIA MACHINE FOR FORMING AND ATTACHING WIRE COILS 4 Sheets-Sheet 4 d Filed Aug. 24, 192s I Patented Nov. 15, 1927.

UNITED STA-Tes :PATENT OFFICE.

WALTER KIWI, or PHILADELPHIA, PENNSYLVANIA, AssIGNon To ooATrisn.v

LANDELL, or PHILADELPHIA, PENNSYLVANIA.

MACHINE FOR FORMING Nn ATTACHING Winn coins.

'Appie'ation mednugust aereas. sensi no. 131,296. J n N t ,.V im. se

This invention, stated in its broadest terms, relates to wire winding machinery "of the automatic type and has more especial rel-ation to machinery of this type in which small b `coils ofwire yare formed andjsiinultaneously secured between adjacent coiled springs for holding vthe latter togethen i The invention consists of the novelconstruction hereinafter described and finally l@ claimed. Y f

The nature, characteristic features and scope of the invention will be morefully understood from the following description taken in connection with the accompanying l drawings formingpartlrereof7 and in which:

Fig. 1,is a View in front 'elevation of `machine parts embodying the invention.

Fig.`2. is a 'front view, upon an `enlarged scale and partly sectioned, of certain `of the parts shown in Fig. 1. f

Fig. 3, is a view lin side elevation of Fig. 1.

Fig. 4, is a plan view thereof.

Fig. 5, is a face view of the doublek cam `shown at the left hand sideof Fig.` 1.

Fig. 6, is a View showing in end `elevation the dovetail fit of the sliding aw..

Fig. 7 is a front diagrammatic view i1lu`strating the manner of coilingwire around a pair ofcoiled springs.

Fig. 8 shows the saine parts in end elevation.

Fig. 9,'is a view in perspective ofa linished, detached coil; and i i Fig. `1(),is a view in plan of several fooil'ed springs secured together by said wires.

In the drawings, 1 designates a )frame `which may besupported in any wavy, as for instance suspendedv by rods 2 from the ceiling. Rotatably supported in frame'l is the main driving shaft f3 `and paralleling the same is the secondary shaft 4. Theishafts been illustrated.` Eachof the shafts 3 andv 4 is equipped witha feed roller the same being designated 7 and 8 respectively. These Afor accommodation and in rotation feed `in Fig. 1, thepin-27 is pressed outward thus source ofrpower forming no'part of thepresrollersare grooved annularly. at 10 and 11.y

the wire 12 through a 'fixed "guide 13` directly to a 'stationary Yjaw r14, "see Fig. 2. 7

Thislix'f'ed jaw is"`provided witha wiregau'ge of semi-circularcontour fand `desifgnated *15, the gauge being provided with a `series "f grooves best seen in Fig. "8. These grooves 'alignwith similar grooves of a wire gaugel Vof a movable jaw 17 so that when the :jaw

`17 4is shifted to the 'left in Fig. the twjo 6o gauges abut and the grooves formfc'omplete spira-ls. Thus, as the guiderollers feed "wire Y12 to the meeting gauge parts the wire is forced around inside the same to form a coil 19, as seen in Fig. 9. As the wi're -12"`is fed through the rollers 7;-8 it`may, if found desirable, strain out the wire prior to being `fed through the saidrollers by means ofi straining rollers 20,1se`e Figs.` 1 andB. These straining rllers 20 yform no part of` thepresent invention andmay `be positioned in any desired place, for instance: `upon the `frame 1 as shown lin thedrawings. The 'shi'ftable jaw 17 is moved to the left iny F ig. 2 bymjeans of aflever`21 having slot and pinconnection This rock-shaft also car- 8O frame 1 by means of coiled spring26, which `spring tends to keep the shiftableja'wl V 17 moved to the right in Fig. -1.` The extension 25is operatedlupon by means of a shiftable pin 27, see Fig. 1;, which pin car- 'ries at its lower end a roller 28 `adapted to traclr'upon la cam 29. This cam 29 is carried by driving shaft 3 and in therotati'onof the cam 29 in the direction of the arrow moving extension 25 of arm 24 upwardly `against the actionof spring 26, `thus shifting the spring 26 causesthe extension 25,1arm 24,

lever 21..and jawfl? to Linove to normal p05 sition. `Theextefnision `25 shown at'theleft ico 4l1a"r1dj. side of Fig. lis providedwitl plate 45 against which actuated with a pin 30 having a rounded end which pin 30 in the rotation of the feed roller 7 is adapted to contact withv the inelineds'ur- -faceof the head 31 of avertieallyarranged pin 32.` `Thispin 32 upon being depressed arounda pair of adjacent `coiled springs exerts pressure upon theinclined surface 33 `of a` horizontally disposed member 34 which carries a longitudinally extendedlcutter 35, thelouter end or cuttingedge ofivhich cutter "35 normally is substantially flush with the innermost portion of the gauge l5, as clearly illustrated* atfzthe left hand" side of Fig. `2. :The ycut-ter v35 is mounted in this normal positionlby means of the spring 36. Thus,

as thefeed rollers 7 `and 8` feed `Wire 12 `of the gauges lfandl the Wire 'is coiledin said gauges in the fashion shown in Fig.

37e-3821As` the coils 19, previously described, are thus formed, thefeed roller 7 has `proportionately advanced so that the `studBOdepresses head` Sland the pin `32 `andfsliifts` member 311 totlie riglityto cause thevjcuttei' 35 `to sever the coil 19, as formed from:` the remainder of the Wire l2. This operation is repeated and repeated until the required f number of vsprings y37 and 38 are securedi together by Wire coils 919, an illustration of ivliielr is shovvn in Fig.` 10.v "It maybe stated tliatftheiaw `14 is provided with opposed slots :39, see Fig. 8, and the jawL 17: is provided ivith similar `slots 40,

which slots are usedllas guides for presentingisprings 37e-38 to thegaugesi 16.

The slidable jaw 17, `as shown in Figs. 2V and 6, is providedwith a dovetailed connection 'with respectto the frame 1. y i

The bearing 42 which supports shaft `4f is mounted in Ways 43in frame 1 and the bearing 42 has cushioned relation as at 44 with the rfi'rame `1, `see Fig 1. "This is so tliatthe feed-"rollerB is -fre`e`to move to the right "orleft in Fig. 1 to" "take care ofany inequalities in thefwire l2 and'tlierebyipreventjammingof feed roller parte@` uIt`^`ivill`now apparent that I have devisedi-a novel `-and useful construction "whicli embodies the features of advantage enume`ratedas desirablein the statementof the 1in fvention and the above descriptioiiand Vivhile` y I havefin thepr-esent instance shovvnand 50 described the` preferred embodiment thereof `which :has been foundin practice to `give "satisfactory and reliable results, it is to be l, understood that the same is susceptible of.` modification in various particulars Without departing from the spirit or scope of the invention or tages.

lVhat 1 cla im is:

l. In a machine of the character stated, Wirefeeding rolls, a fixed part-ring frn'inng gauge, a companion part-,wing forming gauge movable longitudinally toward the iiied sacrificing any of its advan- Agauge to abnttingf relation, means for feed ing wire thi'ouglrsaid rolls to said meeting gaugesfoi a piedetei'iniiied length of wire, a cutter', and ineens' carried by one of said feedrolls for operating said cutter to sever said wire after the proper length thereof` has been l'ed-tosaid meeting gaugesto .form a spiral'coil. i

2; In a machine of the `character stated,

"Wire feeding rolls,a fixed part-ring forming gauge having a spiral groove therein, a comspanien part-ring forming gauge having a spiral groove therein movable longitudinally toward'therliredgauge to abutting relation,

means for feeding Wire through said rolls to said meeting gauges for a predetermined fleiigtli of wire, a cutter, and means carried by one of said feedrolls for operating said cutter tolsever said Wire after the `proper length thereof has beenfed tosaid meeting gauges to fori'n a spiral coil. i i i 3. Iiiiainacliine of the character stated, Wire feeding rolls,a tired lzuirtriner forming gauge, a companion part-ringforming gauge `movable longitudinally toward the ited gauge to abutting. relation said gauges eacli having a longitudinally wextended U shaped slot therein to accommodate acoiled spring, ineansfor feedingwire through said rolls `to said' meeting` gauges for `a piedecarried by `oneof said feedrolls forioperatf ingsaid cutter i to sever said Wire after the proper lengththereof has been fed to `said meeting gauges to `form a spirali coilj.:

.termined` length` ofswire;y a cutter, and rneansl f In a devieefof thecharactei stated`,""wirein feeding rolls, a `fixed part-ring forming gauge, a companion `pt'irt-ring :forming gauge movable longitudinally toward the Xed gauge to` abuttingrelation, means for feedingzwire through said rolls to said meeting" gauges for' predetermined length of wire, a cutter, andmeansincluding a fixed operating said cutter to sever `said .Wire

`pin carried bye one of `saidifeed rolls for i `after theproper lengthwt-hereofkhas "beenr fed tosaid ,meeting gaugesto `forni a spiral coil. .n i 5.111 iaimacliincof the character stated,

`Wire feeding rolls,a fixedpziit-iing forming gauge@` a: companion partring foil'iniiigi"11 gauge movable longitudinally toward the fixed "gauge to abutting relation,` means` for feeding wirethrough said rolls te said meeting gauges for "a `p'redetermiiied` length of Wire, longitudinally disposed cutter, and" "means carriedrby one ofsaid feedrolls for operating said cutter to sever said Wire nie lill) after the proper length thereof has been fed to said meeting gauges to form a spiral coil. n

6. In a. machine of the character stated, Wire feeding rolle, a fixed part-ring forming gauge7 a Companion part-ring forming gauge movable longitudinally toward the fixed gauge to abutting relation, means for feeding Wire through said rolls to said meeting gauges foi` a pre-determined length of Wire, a cutter, and means carried by one of said feed rolls including @am mechanism, for operating said cutter to sever said Wire after the proper length thereof has been fed to said meeting gauges to form a Spiral eoil.

WALTER KIWI. 

